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• W4282961906 endingPage "e0263198" @default.
• W4282961906 startingPage "e0263198" @default.
• W4282961906 abstract "Simple feature detectors in the visual system, such as edge-detectors, are likely to underlie even the most complex visual processing, so understanding the limits of these systems is crucial for a fuller understanding of visual processing. We investigated the ability of bumblebees ( Bombus terrestris ) to discriminate between differently angled edges. In a multiple-choice, “meadow-like” scenario, bumblebees successfully discriminated between angled bars with 7° differences, significantly exceeding the previously reported performance of eastern honeybees ( Apis cerana , limit: 15°). Neither the rate at which bees learned, nor their final discrimination performance were affected by the angular orientation of the training bars, indicating a uniform performance across the visual field. Previous work has found that, in dual-choice tests, eastern honeybees cannot reliably discriminate between angles with less than 25° difference, suggesting that performance in discrimination tasks is affected by the training regime, and doesn’t simply reflect the perceptual limitations of the visual system. We used high resolution LCD monitors to investigate bumblebees’ angular resolution in a dual-choice experiment. Bumblebees could still discriminate 7° angle differences under such conditions (exceeding the previously reported limit for Apis mellifera , of 10°, as well as that of A . cerana ). Bees eventually reached similar levels of accuracy in the dual-choice experiment as they did under multiple-choice conditions but required longer learning periods. Bumblebees show impressive abilities to discriminate between angled edges, performing better than two previously tested species of honeybee. This high performance may, in turn, support complex visual processing in the bumblebee brain." @default.
• W4282961906 created "2022-06-17" @default.
• W4282961906 creator A5034829404 @default.
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• W4282961906 date "2022-06-16" @default.
• W4282961906 modified "2023-10-18" @default.
• W4282961906 title "Discrimination of edge orientation by bumblebees" @default.
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• W4282961906 doi "https://doi.org/10.1371/journal.pone.0263198" @default.
• W4282961906 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35709295" @default.
• W4282961906 hasPublicationYear "2022" @default.
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